+# Reset the permissions of the tree. Since Meson keeps the permissions
+# all the way to the installed files, reset them to one of 0644 or 0755
+# so the files keep those permissions, otherwise details of what umask
+# was set at the time the git tree was cloned will leak all the way
+# through. Also set umask explicitly during the build.
+chmod -R u+w,go-w,a+rX .
+umask 022
+
+# If mkosi.builddir/ exists mkosi will set $BUILDDIR to it, let's then use it
+# as out-of-tree build dir. Otherwise, let's make up our own builddir.
+[ -z "$BUILDDIR" ] && BUILDDIR=build
+
+# Meson uses Python 3 and requires a locale with an UTF-8 character map.
+# Not running under UTF-8 makes the `ninja test` step break with a CodecError.
+# So let's ensure we're running under UTF-8.
+#
+# If our current locale already is UTF-8, then we don't need to do anything:
+if [ "$(locale charmap)" != "UTF-8" ] ; then
+ # Try using C.UTF-8 locale, if available. This locale is not shipped
+ # by upstream glibc, so it's not available in all distros.
+ # (In particular, it's not available in Arch Linux.)
+ export LC_CTYPE=C.UTF-8
+ if [ "$(locale charmap)" != "UTF-8" ] ; then
+ # Finally, try something like en_US.UTF-8, which should be
+ # available in Arch Linux, but is not present in Debian's
+ # minimal image in our mkosi config.
+ export LC_CTYPE=en_US.UTF-8
+ if [ "$(locale charmap)" != "UTF-8" ] ; then
+ # If nothing works, fail early.
+ echo "*** Could not find a valid locale that supports UTF-8. ***" >&2
+ exit 1
+ fi
+ fi
+fi